Ieans for locking and un locking the doors of safes



(No Model.)

H e h S .h. m h S 2 N O M A D L G MEANS FOR LOOKING AND UNLOGKING THE-DOORS OF SA FES,

Patented Jan. 27, 1885;

n. PEYERS. Pholo-Lilhographer. Wnhmgmn, 0.0.

(No Model.) 2 Sheets-Sheet 2.

G. L. DAMON.

MEANS FOR LOOKING AND UNLOOKING THE DOORS OF SAPES, ($56. No. 311,419. Patented Jan. 27, 1885.

N. PETERS. Phola-ljlhognpMr, Wahing\nn. n. c.

lUNll'llED Starts Parent Orrien.

GEORGE L. DAMON, OF BOSTON, MASSACHUSETTS.

MEANS FOR LOOKING AND UNLOCKING THE DOORS OF SAFES, 84c.

SPECIFICATION forming part of Letters Patent No. 311,419, dated January 27,1885.

Application filed February 1, 1884. (No model.)

T 0 60% whom it may concern:

Be it known that I, GEORGE L. DAMON, of Boston, in the county of Suffolk and State of Massachusetts, have invented a certain new and useful Improvement in Means for Locking and Unlocking the Doors of Safes, &c., of which the following is a specification.

I will describe an apparatus embodying my improvement, and then point out the various features in claims.

In the accompanying drawings, Figure 1 is a view of the inner side of a door furnished with means for locking and unlocking it embodying my improvement. Fig. 2 is a view of part of a door furnished with a portion of the means for locking and unlocking it shown in Fig. 1, and embodying a different form of my improvement.

Referring now to Fig. 1, A designates a door, which may be of any suitable construction, and hinged at either side to the safe or other article with which it is used. In order to save space, the lower part of the door is omitted from the drawings.

B designates bolts which may be moved out of or drawn into the end and sides of a frame,

- a, forming part of the door, for the purpose of looking or unlocking the door. The end of the door which is not shown is to be provided with similar bolts.

0 designates disks or wheels, as here shown, upon studs extending from the inner side of the door A, and secured thereon by nuts I). They are capable of a slight rotary movement.

The bolts B are provided with pins or projections 0 c, that enter cavities in the sides of the wheels O which are the nearer to the door.

When the wheels are rotated, they force out or draw in the bolts. The cavities of the wheels into which the pins or projections c of the bolts extend are elongated in such direction as'to permit the wheels movingin curved lines to move the bolts in straight lines.

D designates a carrier-bar whereby motion is imparted to the wheels 0. This carrier-bar is made in the form of a rectangular frame. Its lower end is not shown. It will, however, correspond to the upper end. As shown, it is nearly as wide externally as the interior of the frame a of the door; but it is made considerably shorter externally than the interior of the said frame, in order that it may move up and down therein. It is slotted longitudinally to fit the studs on which the wheels 0 are mounted, and may be guided in its movements by such studs. The side portions of the carrier-bar D are provided with pins or projections s, that enter cavities in the side of the adjacent wheels, which are the nearer to the carrier-bar, and thereby impart motion to these Wheels. The cavities are elongated to compensate for the different directions in which the carrier-bar and wheels move. The pins 0, whereby bolts at the corners of the door are connected to the adjacent wheels, are affixed to the carrier-bar, and hence serve to transmit motion from the carrier-bar to such wheels. Motion is imparted to the carrier-bar by an oscillating arm, E, and link E. The oscillating arm E is at the lower end pivotally connected to a stud, F, extending from the inner side of the door, and at the upper end pivotally connected by a pin or screw, F, to the link E. At the upper end the link E is pivotally connected to the upper part of the carrier-bar. The oscillating arm and link at their junction are connected to a chain or equivalent device, G. At one end this chain is connected to a wheel, I-I, journaled in an appurtenance of the door, arranged on the inner side thereof. Leaving the wheel H, the chain passes around guide-pulleys I, mounted on screws or studs extending from the rear side of the door, and at the free end it has attached to it a weight, J. Obviously a spring or other motive agent may be used in lieu of this weight, if desirable. The weight J tends to constantly rotate the wheel H in such direction as to unwind the chain from it. The parts are shown in position ready for locking, and with the bolts drawn in, so that the door may be closed.

K designates a lever fulcrumed between the ends to a screw or stud, d, which is rigidly affixed to the inner side of the door or to an appurtenance thereof. The upper end of this lever fits in a slot in a bar, L, that is capable of sliding lengthwise in the outer side portion or bar of the frame a of the door, and thelower end of the lever is adapted to project in frontof a projection, e, on the wheel H and prevent the wheel from turning. The inner end of the bar L works in a block, f, attached to the inner side of the door. A spiral spring surrounds it between a shoulder with which it is IOC provided and an opposite portion of the block f, and tends to force the baroutward, so that it will project farther than the bolts will while the latter are in an unlocked position. WVhen the door is closed, the projecting outer end of the bar L will come in contact with theadjacent jamb of the door-casing or with an appurtenance of the door-casing, and thereupon will be snubbed or forced inward. The snubbing' of the bar L will cause the lever K to rock out of the way of the projection e of the wheel H, and thereupon the said wheel will rotate under the influence of the weight J.

In a plane nearer to the inner side of the door than the lever K a lever, M, is arranged. It is fulcrumed between the ends to a pin or screw, which is affixed to the door or to an appurtenance thereof. The lower end has a hook or projection, 9, extending from that side which is the farther from the door, and this projection is adapted to engage with a projection, h, upon that side of the wheel H which is the nearer to the door. The upper end of the lever M is connected by a link, t, to the bolt j of a time-lock, N, that is secured to the inner side of the door. The time-lock may be of anysuitable kind. X'Vhen the wheel H is released from thelever Kby the closing of the door, it rotates until its projection it comes in contact with the projection g y of the lever M, whereupon it will be arrested.

By the time this occurs the oscillating arm E and link Ewill have been brought more nearly into if not quite into line, so as to raise the carrier-bar D and cause it to force out the bolts B. The door will then remain locked until the time-lock N rocks the lever N, so as to cause it to release the wheel H. WVhen this happens, the wheel H again rotates under the influence of the weight J until the oscillating arm E and link E shall have been pulled beyond alignment into a position the reverse of that which they occupied at first, and as indicated by dotted lines. he door may then be opened. Before the door is to be locked again the wheel H will have to be rotated, so as to wind the chain upon it, and allow the projection e to engage with the lever K again. It will be seen that a single weight or spring effects the shifting of the bolts both for locking and unlocking the door, and that but one operationhas to be performed to put the door in condition both for locking and unlocking. The breakage of the chain G while the carrier-bar happened to be in the locking position would result in the shifting of the oscillating arm E and link Eso far out of line that the gravity of the carrier-bar could assert itself and by causing the descent of the carrierbar effect the unlocking of the bolts.

That part of the chain which extends between the wheel H and the oscillating arm E and link E serves to transmit motion from the latter to the former. The oscillating arm E is the equivalent of a wheel turning onthe stud F. If a wheel is used instead of it, the link IE will connect such wheel to the carrierbar. Obviously, therefore, a wheel actuated by a weight or analogous motive agent, and connected by a link to the carrier-bar, might be used in lieu of the oscillating arm and link without departing from the spirit of my invention. Indeed, a link connected to a wrist on the wheel H might subserve every purpose.

It desirable, the carrier-bar might be used with the other parts involved in my invention in such manner as to move horizontally instead ofvertical ly, the other parts being adapted to operate in conjunction with it when so changed.

The improvement may be used not only in conjunction with a door, but with any analogous article.

By the term door, as I use it in this specification, I mean any article that closes an opening or controls access to asafe or similar article.

Instead of the time-lock which I have referred to, any suitable time mechanism may be used.

The oscillating arm and link are really connected to the bolts, although indirectly,through the earrier-bar and wheels.

A single bolt may be used instead of a number of belts in some cases. Such an arrange ment I have illustrated in Fig. 2, in which a single bolt, B, is shown as connected directly with the upper end of the link E. When a single bolt is used, as in this instance, the carrier-bar may be dispensed with.

What I claim as my invention, and desire to secure by Letters Patent, is l. A door, a bolt, a carrier-bar serving to impart motion to the bolt and adapted to be moved vertically, a wheel or oscillating arm serving to impart an upward motion to the carrier-bar for effecting the movement of the bolt necessary for locking the door, a weight or spring, a connection between the weight or spring, and the wheel or oscillating arm, all being combined and organized substantially as described, whereby in case of breakage the carrier-bar will descend through gravity and cause the bolt to unlock the door.

2. The combination, with a door, of a bolt,

a carrier-bar serving to impart motion to the bolt, a wheel or oscillating arm pivotally connected to the door, a link pivotally connected at oneend to the said wheel or oscillating arm and pivotally connected at the other to the carrier-bar and when oscillated causing the bolt to be operated, a weight or spring foractnating said wheel or oscillating arm, a stop for controlling the wheel or' oscillating arm, a nosepiece which while the door is being closed will be shifted to cause the stop to release the wheel or oscillating arm in order that the said wheel or oscillating arm and link may actuate the bolt for locking the door, a second stop for controlling the wheel or oscillatingarm, and a time mechanism for causing the release of the wheel or oscillating arm from this second stop, substantially as specified.

3. The combination, with a door, of a belt,

fecting the movements of the carrier-bar in opposite directions, astop, a nose-piece which while the door is being closed will be shifted to cause the stop to release the weight or spring and allow it to effect a movement of the carrier-bar sufficient to cause the bolt to lock the door, a second stop, and atime mechanism serving to operate this second stop for causing it to release the weight orspring and allow it to effect a movement of the carrierbar for the purpose of causing the bolt to unlock the door, substantially as specified.

4. The combination, with a door, of a bolt, a carrier-bar for actuating the bolt, a wheel or oscillating arm pivotally connected to the door and serving to actuate the carrier-bar, a chain or its equivalent connecting the second wheel with the wheel or oscillating arm, a weight or spring acting on the chain or its equivalent, a stop, a nose-piece which while the door is being closed will be shifted to cause the stopto release the weight or spring and allow it to shift the wheel or oscillating arm so that it will effect the movement of the bolt for locking the door, a second stop, and a time mechanism adapted to cause this second step to release the weight or spring, whereby the same will shift the wheel or oscillating arm in order that the latter may effect the movement of the bolt for unlocking the door, substantially as specified.

5. A door, a bolt, a wheel or oscillating arm, a connection between the bolt and the wheel or oscillating arm whereby the latter may operate the bolt to lock and unlock the door, a weight or spring serving to impart motion to the wheel or oscillating arm, a connection between the said weight or spring and the wheel or oscillating arm, all being combined and organized substantially as described, whereby in case of breakage the bolt will unlock the door.

6. The combination, with a door, of a bolt, a wheel or oscillating arm, a connection between the bolt and the wheel or oscillating arm, a weight or spring, a connection between the weight or spring and the wheel or oscillating arm whereby the weight or spring is adapted while moving in but one direction to effect the movement of the bolt in opposite directions for locking and unlocking the door, a stop, a nose-piece which while the door is being closed will be shifted to cause the stop to release the weight or spring in order that it may operate the bolt to lock the door, a second step, and a time mechanism for causing this second stop to release the weight or spring in order that it may actuate the bolt to unlock the door, substantially as specified.

GEORGE L. DAMON.

WVitnesses:

EUGENE B. HAGAR, J. LORENZO ATTWOOD. 

